I am reading through Dr. Shinder's book (thanks all for the suggestion) and I am looking over my install options. I do not really need the firewall feature, but I do want to use caching, proxy, and IDS features. Do I NEED 2 NICs to do that? I have one internal address for the machine I want to use, and do not really want to add a public address. I can adda NIC and put it on the DMZ, but is that necessary? Let me know your thoughts/experience. TIA